<!DOCTYPE html>
<html lang="zh_CN">

<head>
    <meta charset="UTF-8">
    <title>双飞翼布局</title>
    <link rel="stylesheet" type="text/css" href="./static/css/index.css">
</head>

<body>
    <div id="page">
        <div id="hd">head
        </div>
        <div id="bd">
            <div class="main">
                <div class="main-wrap">
                    <p>main</p>
                    <p>main</p>
                    <p>main</p>
                    <p>main</p>
                    <p>main</p>
                    <p>main</p>
                    <p>main</p>
                </div>
            </div>
            <div class="sub">sub</div>
            <div class="extra">extra</div>
        </div>
        <div id="ft">foot
        </div>
    </div>
</body>

</html>
